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Living Reviews in Solar Physics, 2005 We review the current status of local helioseismology, covering both theoretical and observational results. After a brief introduction to solar oscillations and wave propagation through inhomogeneous media, we describe the main techniques of local ...
Laurent Gizon, Aaron C Birch
exaly +6 more sources
Nonzero Phase Shifts of Acoustic Waves in the Lower Solar Atmosphere Measured from Realistic Simulations and Their Role in Local Helioseismology [PDF]
The Astrophysical Journal, 2023 Previous studies analyzing the evanescent nature of acoustic waves in the lower solar atmosphere, up to 300 km above the photosphere, have shown an unexpected phase shift of an order of 1 s between different heights.
M. Waidele +2 more
doaj +2 more sources
Helioseismology, solar models and solar neutrinos [PDF]
, 1999 We review recent advances concerning helioseismology, solar models and solar neutrinos. Particularly we shall address the following points: i) helioseismic tests of recent SSMs; ii)the accuracy of the helioseismic determination of the sound speed near ...
B. Ricci +22 more
core +4 more sources
Detection of Supergranulation Alignment in Polar Regions of the Sun by Helioseismology [PDF]
, 2010 We report on a new phenomenon of `alignment' of supergranulation cells in the polar regions of the Sun. Recent high-resolution datasets obtained by the Solar Optical Telescope onboard the Hinode satellite enabled us to investigate supergranular ...
Bogart +15 more
core +2 more sources
Helioseismology challenges models of solar convection. [PDF]
Proc Natl Acad Sci U S A, 2012 Convection is the mechanism by which energy is transported through the outermost 30% of the Sun. Solar turbulent convection is notoriously difficult to model across the entire convection zone where the density spans many orders of magnitude.
Gizon L, Birch AC.
europepmc +2 more sources
New Solar Metallicity Measurements
Atoms, 2019 In the past years, a systematic downward revision of the metallicity of the Sun has led to the “solar modeling problem„, namely the disagreement between predictions of standard solar models and inferences from helioseismology.
Sunny Vagnozzi
doaj +3 more sources
Probabilistic Inversions for Time–Distance Helioseismology [PDF]
Solar Physics, 2020 Jason Jackiewicz
exaly +2 more sources
Seismology of active regions: Current status and perspectives
Frontiers in Astronomy and Space Sciences, 2023 The goal of helioseismology is to provide accurate information about the Sun’s interior from the observations of the wave field at its surface. In the last three decades, both global and local helioseismology studies have made significant advances and ...
Sushanta Tripathy
doaj +1 more source
Local Helioseismology: Three-Dimensional Imaging of the Solar Interior [PDF]
Annual Review of Astronomy and Astrophysics, 2010 Laurent Gizon, Aaron C Birch
exaly +2 more sources
Sub-surface plasma flows and the flare productivity of solar active regions
Frontiers in Astronomy and Space Sciences, 2022 The extreme space weather conditions resulting from high energetic events likes solar flares and Coronal Mass Ejections demand for reliable space weather forecasting.
B. Lekshmi +5 more
doaj +1 more source